CN117946821A - Stable weak acid concentrated laundry detergent and preparation method thereof - Google Patents
Stable weak acid concentrated laundry detergent and preparation method thereof Download PDFInfo
- Publication number
- CN117946821A CN117946821A CN202410113416.8A CN202410113416A CN117946821A CN 117946821 A CN117946821 A CN 117946821A CN 202410113416 A CN202410113416 A CN 202410113416A CN 117946821 A CN117946821 A CN 117946821A
- Authority
- CN
- China
- Prior art keywords
- laundry detergent
- concentrated laundry
- stable
- weakly acidic
- surfactant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000003599 detergent Substances 0.000 title claims abstract description 66
- 239000002253 acid Substances 0.000 title claims abstract description 19
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- -1 poly (oxo-1, 2-ethanediyl) Polymers 0.000 claims abstract description 29
- 239000004094 surface-active agent Substances 0.000 claims abstract description 20
- 239000011734 sodium Substances 0.000 claims abstract description 15
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 235000019387 fatty acid methyl ester Nutrition 0.000 claims abstract description 7
- 239000002904 solvent Substances 0.000 claims abstract description 7
- 230000002378 acidificating effect Effects 0.000 claims description 14
- 239000002736 nonionic surfactant Substances 0.000 claims description 13
- 150000002191 fatty alcohols Chemical class 0.000 claims description 10
- 239000003945 anionic surfactant Substances 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 239000002888 zwitterionic surfactant Substances 0.000 claims description 7
- 239000007844 bleaching agent Substances 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 5
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 5
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 5
- 239000002994 raw material Substances 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Substances OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 4
- KWIUHFFTVRNATP-UHFFFAOYSA-N glycine betaine Chemical compound C[N+](C)(C)CC([O-])=O KWIUHFFTVRNATP-UHFFFAOYSA-N 0.000 claims description 4
- 239000000049 pigment Substances 0.000 claims description 4
- 239000003755 preservative agent Substances 0.000 claims description 4
- 150000001413 amino acids Chemical class 0.000 claims description 3
- 239000002738 chelating agent Substances 0.000 claims description 3
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 3
- 239000000194 fatty acid Substances 0.000 claims description 3
- 229930195729 fatty acid Natural products 0.000 claims description 3
- 230000003472 neutralizing effect Effects 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 claims description 3
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 2
- 229960003237 betaine Drugs 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 150000007942 carboxylates Chemical class 0.000 claims description 2
- 239000003205 fragrance Substances 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 claims description 2
- 239000001397 quillaja saponaria molina bark Substances 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 229930182490 saponin Natural products 0.000 claims description 2
- 150000007949 saponins Chemical class 0.000 claims description 2
- 241000580955 Sapindus mukorossi Species 0.000 claims 1
- JXLHNMVSKXFWAO-UHFFFAOYSA-N azane;7-fluoro-2,1,3-benzoxadiazole-4-sulfonic acid Chemical compound N.OS(=O)(=O)C1=CC=C(F)C2=NON=C12 JXLHNMVSKXFWAO-UHFFFAOYSA-N 0.000 claims 1
- 229940079919 digestives enzyme preparation Drugs 0.000 claims 1
- 229910021653 sulphate ion Inorganic materials 0.000 claims 1
- 239000006260 foam Substances 0.000 abstract description 15
- 230000000694 effects Effects 0.000 abstract description 11
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 abstract description 7
- WBIQQQGBSDOWNP-UHFFFAOYSA-N 2-dodecylbenzenesulfonic acid Chemical compound CCCCCCCCCCCCC1=CC=CC=C1S(O)(=O)=O WBIQQQGBSDOWNP-UHFFFAOYSA-N 0.000 abstract description 4
- 229940060296 dodecylbenzenesulfonic acid Drugs 0.000 abstract description 4
- 229930182470 glycoside Natural products 0.000 abstract description 3
- 239000012752 auxiliary agent Substances 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 20
- 238000005406 washing Methods 0.000 description 17
- 235000015424 sodium Nutrition 0.000 description 12
- 238000012360 testing method Methods 0.000 description 12
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 9
- 239000007788 liquid Substances 0.000 description 9
- 239000000203 mixture Substances 0.000 description 9
- 241000196324 Embryophyta Species 0.000 description 6
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 6
- MRUAUOIMASANKQ-UHFFFAOYSA-N cocamidopropyl betaine Chemical compound CCCCCCCCCCCC(=O)NCCC[N+](C)(C)CC([O-])=O MRUAUOIMASANKQ-UHFFFAOYSA-N 0.000 description 5
- 229940073507 cocamidopropyl betaine Drugs 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 125000005227 alkyl sulfonate group Chemical group 0.000 description 4
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 230000002776 aggregation Effects 0.000 description 3
- 238000004220 aggregation Methods 0.000 description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 3
- DHNRXBZYEKSXIM-UHFFFAOYSA-N chloromethylisothiazolinone Chemical compound CN1SC(Cl)=CC1=O DHNRXBZYEKSXIM-UHFFFAOYSA-N 0.000 description 3
- 238000013329 compounding Methods 0.000 description 3
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 description 3
- 238000007046 ethoxylation reaction Methods 0.000 description 3
- 239000002304 perfume Substances 0.000 description 3
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 description 3
- 238000013112 stability test Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229940100555 2-methyl-4-isothiazolin-3-one Drugs 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 102000004190 Enzymes Human genes 0.000 description 2
- 108090000790 Enzymes Proteins 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- 108091005804 Peptidases Proteins 0.000 description 2
- 239000004365 Protease Substances 0.000 description 2
- 102100037486 Reverse transcriptase/ribonuclease H Human genes 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 235000019864 coconut oil Nutrition 0.000 description 2
- 239000003240 coconut oil Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- PXEDJBXQKAGXNJ-QTNFYWBSSA-L disodium L-glutamate Chemical compound [Na+].[Na+].[O-]C(=O)[C@@H](N)CCC([O-])=O PXEDJBXQKAGXNJ-QTNFYWBSSA-L 0.000 description 2
- 229940079779 disodium cocoyl glutamate Drugs 0.000 description 2
- 229940088598 enzyme Drugs 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 230000007794 irritation Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical group C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- BEGLCMHJXHIJLR-UHFFFAOYSA-N methylisothiazolinone Chemical compound CN1SC=CC1=O BEGLCMHJXHIJLR-UHFFFAOYSA-N 0.000 description 2
- 239000000693 micelle Substances 0.000 description 2
- 150000002978 peroxides Chemical class 0.000 description 2
- 230000002335 preservative effect Effects 0.000 description 2
- 239000001509 sodium citrate Substances 0.000 description 2
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 description 2
- 235000011083 sodium citrates Nutrition 0.000 description 2
- 238000005063 solubilization Methods 0.000 description 2
- 230000007928 solubilization Effects 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 238000010257 thawing Methods 0.000 description 2
- JSYPRLVDJYQMAI-ODZAUARKSA-N (z)-but-2-enedioic acid;prop-2-enoic acid Chemical compound OC(=O)C=C.OC(=O)\C=C/C(O)=O JSYPRLVDJYQMAI-ODZAUARKSA-N 0.000 description 1
- AEQDJSLRWYMAQI-UHFFFAOYSA-N 2,3,9,10-tetramethoxy-6,8,13,13a-tetrahydro-5H-isoquinolino[2,1-b]isoquinoline Chemical compound C1CN2CC(C(=C(OC)C=C3)OC)=C3CC2C2=C1C=C(OC)C(OC)=C2 AEQDJSLRWYMAQI-UHFFFAOYSA-N 0.000 description 1
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 1
- QCDWFXQBSFUVSP-UHFFFAOYSA-N 2-phenoxyethanol Chemical compound OCCOC1=CC=CC=C1 QCDWFXQBSFUVSP-UHFFFAOYSA-N 0.000 description 1
- 229940100484 5-chloro-2-methyl-4-isothiazolin-3-one Drugs 0.000 description 1
- 229920002126 Acrylic acid copolymer Polymers 0.000 description 1
- 239000004382 Amylase Substances 0.000 description 1
- 102000013142 Amylases Human genes 0.000 description 1
- 108010065511 Amylases Proteins 0.000 description 1
- 108091005658 Basic proteases Proteins 0.000 description 1
- 102100032487 Beta-mannosidase Human genes 0.000 description 1
- 244000025254 Cannabis sativa Species 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- 108010059892 Cellulase Proteins 0.000 description 1
- 244000241257 Cucumis melo Species 0.000 description 1
- 235000015510 Cucumis melo subsp melo Nutrition 0.000 description 1
- 239000003109 Disodium ethylene diamine tetraacetate Substances 0.000 description 1
- ZGTMUACCHSMWAC-UHFFFAOYSA-L EDTA disodium salt (anhydrous) Chemical compound [Na+].[Na+].OC(=O)CN(CC([O-])=O)CCN(CC(O)=O)CC([O-])=O ZGTMUACCHSMWAC-UHFFFAOYSA-L 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- UGTHTQWIQKEDEH-BQBZGAKWSA-N L-alanyl-L-prolylglycine zwitterion Chemical compound C[C@H](N)C(=O)N1CCC[C@H]1C(=O)NCC(O)=O UGTHTQWIQKEDEH-BQBZGAKWSA-N 0.000 description 1
- 239000004367 Lipase Substances 0.000 description 1
- 102000004882 Lipase Human genes 0.000 description 1
- 108090001060 Lipase Proteins 0.000 description 1
- WHNWPMSKXPGLAX-UHFFFAOYSA-N N-Vinyl-2-pyrrolidone Chemical compound C=CN1CCCC1=O WHNWPMSKXPGLAX-UHFFFAOYSA-N 0.000 description 1
- 241000282320 Panthera leo Species 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 240000003377 Shepherdia canadensis Species 0.000 description 1
- 235000018324 Shepherdia canadensis Nutrition 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
- FJJCIZWZNKZHII-UHFFFAOYSA-N [4,6-bis(cyanoamino)-1,3,5-triazin-2-yl]cyanamide Chemical compound N#CNC1=NC(NC#N)=NC(NC#N)=N1 FJJCIZWZNKZHII-UHFFFAOYSA-N 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 150000008051 alkyl sulfates Chemical class 0.000 description 1
- 235000019418 amylase Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- DMSMPAJRVJJAGA-UHFFFAOYSA-N benzo[d]isothiazol-3-one Chemical compound C1=CC=C2C(=O)NSC2=C1 DMSMPAJRVJJAGA-UHFFFAOYSA-N 0.000 description 1
- 108010055059 beta-Mannosidase Proteins 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 229910021538 borax Inorganic materials 0.000 description 1
- 238000005282 brightening Methods 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 229940106157 cellulase Drugs 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative effect Effects 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 1
- 235000019301 disodium ethylene diamine tetraacetate Nutrition 0.000 description 1
- VTIIJXUACCWYHX-UHFFFAOYSA-L disodium;carboxylatooxy carbonate Chemical compound [Na+].[Na+].[O-]C(=O)OOC([O-])=O VTIIJXUACCWYHX-UHFFFAOYSA-L 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007306 functionalization reaction Methods 0.000 description 1
- 239000008233 hard water Substances 0.000 description 1
- MGIYRDNGCNKGJU-UHFFFAOYSA-N isothiazolinone Chemical compound O=C1C=CSN1 MGIYRDNGCNKGJU-UHFFFAOYSA-N 0.000 description 1
- 235000019421 lipase Nutrition 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000003002 pH adjusting agent Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229960005323 phenoxyethanol Drugs 0.000 description 1
- 230000004962 physiological condition Effects 0.000 description 1
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- HELHAJAZNSDZJO-OLXYHTOASA-L sodium L-tartrate Chemical compound [Na+].[Na+].[O-]C(=O)[C@H](O)[C@@H](O)C([O-])=O HELHAJAZNSDZJO-OLXYHTOASA-L 0.000 description 1
- WXMKPNITSTVMEF-UHFFFAOYSA-M sodium benzoate Chemical compound [Na+].[O-]C(=O)C1=CC=CC=C1 WXMKPNITSTVMEF-UHFFFAOYSA-M 0.000 description 1
- 235000010234 sodium benzoate Nutrition 0.000 description 1
- 239000004299 sodium benzoate Substances 0.000 description 1
- 229960003885 sodium benzoate Drugs 0.000 description 1
- 239000000176 sodium gluconate Substances 0.000 description 1
- 235000012207 sodium gluconate Nutrition 0.000 description 1
- 229940005574 sodium gluconate Drugs 0.000 description 1
- ZNCPFRVNHGOPAG-UHFFFAOYSA-L sodium oxalate Chemical compound [Na+].[Na+].[O-]C(=O)C([O-])=O ZNCPFRVNHGOPAG-UHFFFAOYSA-L 0.000 description 1
- 229940039790 sodium oxalate Drugs 0.000 description 1
- 229940045872 sodium percarbonate Drugs 0.000 description 1
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000001433 sodium tartrate Substances 0.000 description 1
- 229960002167 sodium tartrate Drugs 0.000 description 1
- 235000011004 sodium tartrates Nutrition 0.000 description 1
- 239000004328 sodium tetraborate Substances 0.000 description 1
- 235000010339 sodium tetraborate Nutrition 0.000 description 1
- MWNQXXOSWHCCOZ-UHFFFAOYSA-L sodium;oxido carbonate Chemical group [Na+].[O-]OC([O-])=O MWNQXXOSWHCCOZ-UHFFFAOYSA-L 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 125000000542 sulfonic acid group Chemical group 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 238000010626 work up procedure Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/88—Ampholytes; Electroneutral compounds
- C11D1/94—Mixtures with anionic, cationic or non-ionic compounds
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/0005—Other compounding ingredients characterised by their effect
- C11D3/0047—Other compounding ingredients characterised by their effect pH regulated compositions
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2003—Alcohols; Phenols
- C11D3/2041—Dihydric alcohols
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2075—Carboxylic acids-salts thereof
- C11D3/2086—Hydroxy carboxylic acids-salts thereof
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/38—Products with no well-defined composition, e.g. natural products
- C11D3/386—Preparations containing enzymes, e.g. protease or amylase
- C11D3/38618—Protease or amylase in liquid compositions only
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/02—Anionic compounds
- C11D1/04—Carboxylic acids or salts thereof
- C11D1/10—Amino carboxylic acids; Imino carboxylic acids; Fatty acid condensates thereof
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/02—Anionic compounds
- C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
- C11D1/14—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aliphatic hydrocarbons or mono-alcohols
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/02—Anionic compounds
- C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
- C11D1/29—Sulfates of polyoxyalkylene ethers
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/662—Carbohydrates or derivatives
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/72—Ethers of polyoxyalkylene glycols
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/74—Carboxylates or sulfonates esters of polyoxyalkylene glycols
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/88—Ampholytes; Electroneutral compounds
- C11D1/90—Betaines
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Abstract
The invention provides a stable weak acid concentrated laundry detergent, which comprises the following components in percentage by mass: 4-10% of alpha-hexyl-omega-hydroxyl poly (oxo-1, 2-ethanediyl), 1-3% of alkyl glycoside, 4-10% of fatty acid methyl ester ethoxylate, 5-15% of secondary sodium alkyl sulfonate, 25-32% of other surfactants, 5-15% of solvent, 0.1-10% of auxiliary agent and the balance of water. The invention provides a stable weak acid concentrated laundry detergent and a preparation method thereof, which do not contain dodecylbenzene sulfonic acid, various plant-based source surfactants are introduced, and the stable weak acid concentrated laundry detergent has good stability under the weak acid condition (pH=6.0-6.9). By adopting the technical scheme of the invention, the effects of mild formula, low foam and easy rinsing can be realized. The invention develops the weak acid concentrated laundry detergent which is free of sulfonic acid, green and mild, solves the problems existing in the prior art, and meets the demands of the current market.
Description
Technical Field
The invention relates to the technical field of detergents, and mainly relates to a stable weak acid concentrated laundry detergent and a preparation method thereof.
Background
Laundry detergents are one of the detergents commonly used in daily life. Compared with common washing powder, the liquid laundry detergent has the characteristics of good low-temperature washing effect, quick dissolution, convenient use and the like. With the growing prominence of the drawbacks of the large bottle laundry detergent market, consumer consumption direction begins to shift to concentrated laundry detergent. The concentration, greenization and high-efficiency functionalization will be the development trend of the washing industry.
To meet the development of greenization and realize greenization of products, surfactants derived from natural plants, such as natural fatty alcohol polyoxyethylene ether (C12-14 AEO series nonionic surfactants), natural fatty alcohol polyoxyethylene ether sodium sulfate (AES), fatty acid methyl ester ethoxylate (FMEE), natural alkyl glycoside (C12-14 APG), cocamidopropyl betaine (CAB), amino acid surfactants, and the like, are increasingly used as detergent products.
It is well known that dodecylbenzene sulfonic acid is combined with sodium hydroxide in a liquid laundry detergent to generate sodium dodecyl benzene sulfonate, which has good decontamination effect and low price, and is an indispensable raw material in the traditional sulfonic acid system detergent formula. However, most of the traditional sulfonic acid system concentrated liquid laundry detergent in the market is alkaline, weak acidity is the physiological condition closest to skin, and long-term contact of the skin with the alkaline concentrated liquid laundry detergent with irritation during hand washing can cause certain damage to the skin. In addition, the alkaline concentrated laundry detergent can cause certain damage to the laundry. Therefore, the weak acid and mild concentrated laundry detergent product has wide market prospect in the daily chemical field and meets the demands of consumers.
Patent application number 202210660429.8 discloses a weak acid super-concentrated laundry detergent and a preparation method thereof, wherein components of the weak acid super-concentrated laundry detergent contain dodecylbenzene sulfonic acid with higher proportion, the weak acid super-concentrated laundry detergent is a typical sulfonic acid system detergent, and sulfonic acid can have good anti-gel effect in the concentrated laundry detergent. However, the sulfonic acid system detergents also have certain disadvantages: on the one hand, the dodecylbenzene carbon chain is derived from petrochemical industry, and is not environment-friendly. On the other hand, the sodium dodecyl benzene sulfonate has strong degreasing capability, has certain irritation to skin during hand washing, and has poor hand feeling after washing.
In view of the foregoing, research and development of a weak acidic concentrated laundry detergent which is free of sulfonic acid, green and mild is needed to solve the problems existing in the prior art and meet the demands of the current market.
Disclosure of Invention
The invention provides a stable weak acid concentrated laundry detergent and a preparation method thereof, which do not contain dodecylbenzene sulfonic acid, various plant-based source surfactants are introduced, and the stable weak acid concentrated laundry detergent has good stability under the weak acid condition (pH=6.0-6.9). By adopting the technical scheme of the invention, the effects of mild formula, low foam and easy rinsing can be realized.
An object of the present invention is to provide a stable weak acidic concentrated laundry detergent comprising the following components in mass fraction:
further, the fatty acid methyl ester ethoxylate has the following structural formula:
R-COO-[-CH2-CH2-O-]x-CH3；
Wherein X is selected from an integer of 3-12 and R is selected from vegetable carbon chains C12-C14 derived from coconut oil.
Further, the other surfactant is selected from at least two of anionic surfactant, nonionic surfactant and zwitterionic surfactant.
Further, the anionic surfactant is selected from one or more of alkyl sulfate, fatty alcohol polyoxyethylene carboxylate, fatty acid methyl ester sulfonate and fatty acid salt.
Further, the nonionic surfactant is selected from one or more of fatty alcohol polyoxyethylene ether and soapberry saponin.
Further, the zwitterionic surfactant is selected from one or more of amino acid type surfactant and betaine type surfactant.
Further, the mass fraction of the anionic surfactant is preferably 5 to 20%, the mass fraction of the nonionic surfactant is preferably 20 to 40%, and the mass fraction of the zwitterionic surfactant is preferably 0.2 to 5%.
Further, the auxiliary agent is selected from one or more of a preservative, an anti-redeposition agent, an enzyme preparation, a solvent, a photostable bleach, a neutralizing agent, a fragrance, a pigment, a salt, a chelating agent, and an optical brightening agent.
Further, the mass fraction of the secondary sodium alkyl sulfonate is preferably 10 to 15%. The secondary alkyl sodium sulfonate (SAS) is an anionic surfactant which is environment-friendly, rich in foam and suitable for the field of household washing, and particularly after being compounded with a nonionic surfactant, the foam is increased sharply. Among the hydrophilic groups of the secondary sodium alkyl sulfonate, the sulfonic acid group must be in the middle position, so that the permeability of the product is excellent.
Further, the preservative is selected from one or more of methyl isothiazolinone, chloromethyl isothiazolinone, phenoxyethanol, sodium benzoate, methyl chloroisothiazolinone, benzisothiazolinone, isothiazolinone and derivatives thereof.
Further, the anti-redeposition agent is selected from one or more of sodium polyacrylate, maleic acid acrylic acid copolymer, carboxymethyl cellulose, homo-and copolymers of vinyl pyrrolidone.
Further, the enzyme preparation is selected from one or more of protease, cellulase, lipase, amylase, mannanase and pectase.
Further, the solvent is one or more selected from glycerol, propylene glycol, ethanol, polyethylene glycol and isopropanol.
Further, the photo-stable bleaching agent is selected from one or more of hypochlorite bleaching agents and peroxide bleaching agents; the peroxide bleaching agent is percarbonate or perborate.
Further, the neutralizing agent is selected from one or more of sodium hydroxide, potassium hydroxide, monoethanolamine and triethanolamine.
Further, the perfume is selected from any perfume ingredient suitable for use in detergent products, either of natural origin or of chemically synthesized products, such as melon, fruit, flower and grass type perfumes.
Further, the pigment is selected from any dye, pigment suitable for use in a washing product.
Further, the salt is selected from one or more of sodium citrate, borax, disodium ethylenediamine tetraacetate, sodium percarbonate, sodium gluconate, sodium tartrate and sodium oxalate.
Another object of the present invention is to provide a method for preparing the stable weak acidic concentrated laundry detergent, comprising the steps of:
S1, adding water and a solvent into a container, heating, adding secondary sodium alkyl sulfonate and alpha-hexyl-omega-hydroxy poly (oxy-1, 2-ethylene glycol), and stirring until the secondary sodium alkyl sulfonate and the alpha-hexyl-omega-hydroxy poly (oxy-1, 2-ethylene glycol) are completely dissolved;
s2, stopping heating, adding the rest surfactant, uniformly stirring, adding the rest water, and regulating the pH value after cooling;
and S3, adding other raw materials, and stirring until the raw materials are completely dissolved, thus obtaining the stable weak acidic concentrated laundry detergent.
Further, in step S1, the temperature of heating is 50-70 ℃, and in step S2, the temperature of cooling is 30-50 ℃.
Further, the pH in step S2 is 6-7.
The invention has the following beneficial effects:
1. The stable weak acid concentrated laundry detergent composition of the invention is a formulation system without sodium dodecyl benzene sulfonate, wherein the active substance is mainly a surfactant with a natural plant-based carbon chain. In the invention, the anionic surfactant secondary sodium alkyl sulfonate is compounded with the special nonionic surfactant alpha-hexyl-omega-hydroxy poly (oxy-1, 2-ethylene-diyl), and the alpha-hexyl-omega-hydroxy poly (oxy-1, 2-ethylene-diyl) has more groups with steric hindrance effect, so that the secondary sodium alkyl sulfonate has a branched chain structure and has good hydrophilicity, and the combination of the two substances can prevent the linear hydrophobic carbon chain micelles of the surfactant molecules from intertwining and gathering, thereby achieving good dispersion effect and better solubilization and aggregation-resistant gel effect. Meanwhile, the invention solves the technical problem that the high-concentration surfactant is unstable in a weak acid system (pH=6.0-6.9) by further compounding with other surfactants, so that the product can keep a stable and uniform system under various temperature conditions, and the stability of the product is improved.
2. The concentrated laundry detergent disclosed by the invention has good stability, and can realize low foam and easy bleaching through reasonably compounding the sodium isoalkoxide sulfate and the alpha-hexyl-omega-hydroxyl poly (1, 2-ethylene oxide) without adding fatty acid, and the hands are dry and comfortable after washing, and have no sticky feeling.
Detailed Description
In order to more clearly illustrate the technical solution of the present invention, the following examples are set forth. The starting materials, reactions and workup procedures used in the examples are those commonly practiced in the market and known to those skilled in the art unless otherwise indicated.
The words "preferred," "more preferred," and the like in the present disclosure refer to embodiments of the present disclosure that may provide certain benefits in some instances. However, other embodiments may be preferred under the same or other circumstances. Furthermore, the recitation of one or more preferred embodiments does not imply that other embodiments are not useful, nor is it intended to exclude other embodiments from the scope of the invention.
It should be understood that, except in any operating examples, or where otherwise indicated, quantities or all numbers expressing, for example, quantities of ingredients used in the specification and claims are to be understood as being modified in all instances by the term "about". Accordingly, unless indicated to the contrary, the numerical parameters set forth in the following specification and attached claims are approximations that may vary depending upon the desired properties to be obtained by the present invention.
In the examples and comparative examples, the following materials will be used and have the indicated functions, all formulations taking place in an environment of 25 ℃.
In the examples, the following abbreviations will be used and have the indicated functions.
Citric acid, pH adjuster, purchased from guangzhou reagent plant.
Sodium citrate, chelating agent, purchased from guangzhou reagent plant.
Propylene glycol, solvent, purchased from guangzhou reagent plant.
STS 65, sodium secondary alkyl sulfonate, anionic surfactant, available from Shanghai sokai industries, ltd.
CS 6250, alpha-hexyl-omega-hydroxy poly (oxy-1, 2-ethanediyl), nonionic surfactant, model Basoff Lutensol CS 6250 series product.
AES, fatty alcohol polyoxyethylene sulfate, fatty alcohol having 12-14 carbon atoms, average degree of ethoxylation of2, anionic surfactant available from Hui Jin Tong Fine chemistry Co.
AEO9, fatty alcohol polyoxyethylene ether, fatty alcohol having 12-14 carbon atoms, average degree of ethoxylation of 9, nonionic surfactant, commercially available from Basoff.
Disodium cocoyl glutamate, a zwitterionic surfactant, was purchased from the company of lion chemical limited in south kyo.
CAB, cocamidopropyl betaine, zwitterionic surfactant, available from new materials, inc.
APG, alkyl glycoside, nonionic surfactant, purchased from Shanghai, fakka.
FMEE, fatty acid methyl ester ethoxylate, nonionic surfactant, having the structure:
R-COO-[-CH2-CH2-O-]x-CH3
Wherein R is a vegetable carbon chain C12-14 derived from coconut oil; x is the average degree of ethoxylation (EO number), preferably an integer from 3 to 12, available from medium and light day technology Co., ltd.
TO8, isomeric alcohol ether, nonionic surfactant, brand name of the Lutensol TO series product of Basoff (China) Limited.
Preservatives, methylisothiazolinone and chloromethyl isothiazolinone mixtures, available from IFF company.
Protease, alkaline protease, trade name UNO series products, available from novelin (china) biotechnology limited.
Essence, available from Qi Hua Du essence company.
The water in the embodiments of the present invention, unless specifically stated, is deionized water.
Examples
The composition of the laundry detergent samples of examples 1-4 are shown in Table 1.
TABLE 1 composition ratio of concentrated laundry detergent of examples 1-4
The preparation method of the concentrated laundry detergent in the embodiments 1-4 comprises the following steps:
S1, adding 20wt% of water into a configuration container according to the mass fraction, then adding propylene glycol, heating to 60 ℃, adding STS 65 and CS 6250, and stirring until the mixture is completely dissolved;
s2, stopping heating, reducing the temperature TO below 50 ℃, adding TO8, AEO9, disodium cocoyl glutamate, CAB, APG and FMEE, uniformly stirring, and adding citric acid TO adjust the pH value TO 6.5;
S3, further cooling to 40 ℃, adding the rest components, and stirring until the rest components are completely dissolved, thus obtaining the stable weak acid concentrated laundry detergent.
Comparative examples 1 to 3 were set based on example 1, and differ from example 1 in that: in the concentrated laundry detergent of comparative example 1, STS 65 and CS6250 were not added, and AES, AEO9 and FMEE were added; comparative example 2 STS 65 was reduced in amount and CS6250 was not added and AEO9 was added; comparative example 3 the STS 65 was deleted and the AES, AEO9 usage was increased.
The composition of the laundry detergent samples of comparative examples 1-3 are shown in Table 2.
TABLE 2 composition ratios of concentrated laundry detergent of comparative examples 1-3
Test case
The laundry detergent samples prepared in examples 1-4 and comparative examples 1-3 were tested for key performance.
1. Stability test
The testing method comprises the following steps:
low temperature stability: placing the sample at 0 ℃ for 4 weeks, and observing the appearance;
high temperature stability: placing the sample at 45 ℃ for 4 weeks, and observing the appearance;
freezing and thawing cycle: placing the sample at-15 ℃ for 24 hours, and recovering the sample at normal temperature for 24 hours; circulating for 4 times, recovering normal temperature, and observing appearance;
cold and hot circulation: placing the sample at 45 ℃ for 24 hours, and placing the sample at-15 ℃ for 24 hours; and circulating for 4 times, recovering the normal temperature, and observing the appearance.
The results obtained are shown in Table 3.
TABLE 3 stability test results for concentrated laundry detergents of examples 1-4, comparative examples 1-3
| Low temperature stability | High temperature stability | Freeze thawing cycle stability | Stability of cold and hot circulation | |
| Example 1 | Clear and transparent | Clear and transparent | Clear and transparent | Clear and transparent |
| Example 2 | Clear and transparent | Clear and transparent | Clear and transparent | Clear and transparent |
| Example 3 | Clear and transparent | Clear and transparent | Clear and transparent | Clear and transparent |
| Example 4 | Clear and transparent | Clear and transparent | Clear and transparent | Clear and transparent |
| Comparative example 1 | Milky cloudy | Clear and transparent | Clear and transparent | Clear and transparent |
| Comparative example 2 | Milky cloudy | Clear and transparent | Clear and transparent | Clear and transparent |
| Comparative example 3 | Milky cloudy | Clear and transparent | Clear and transparent | Clear and transparent |
As can be seen from the stability test results of Table 3, the concentrated laundry detergent of examples 1 to 4 can ensure the stability of the sample at each test temperature, while comparative examples 1 to 3 have a white turbidity problem at low temperature. The alpha-hexyl-omega-hydroxyl poly (oxo-1, 2-ethanediyl) in the concentrated laundry liquid in the embodiment 1-4 has a sterically hindered effect group, has good compatibility with sodium secondary alkyl sulfonate, has a branched chain structure and good hydrophilicity, can avoid the mutual winding aggregation between the linear hydrophobic carbon chain micelles of the surfactant molecules by combining the two, realizes a good dispersing effect and has a good solubilization aggregation-resistant gel effect, so that the product can form a stable and uniform system under various temperature conditions.
2. Foam test
The liquid laundry detergent samples prepared in examples 1-4 and comparative examples 1-3 were tested according to the Roche foam method in GB/T13173 method for surfactant detergent test. In the test, the concentration of the concentrated liquid laundry detergent is 2.5g/L, and the concentration of the hard water is 150ppm;
the initial volume of the foam was recorded, after 5min, 10 min.
The results obtained are shown in Table 4.
TABLE 4 foam test results for concentrated laundry detergents of examples 1-4, comparative examples 1-3
From the foam test data in Table 4, the foam volume of examples 1-4 was significantly reduced after more than 5 minutes of observation, indicating that the concentrated laundry detergent was low foam and easy to rinse; and comparative examples 1-3, in which sodium secondary alkyl sulfonate and alpha-hexyl-omega-hydroxypoly (oxy-1, 2-ethanediyl) were deleted or replaced, were very high in foam volume both initially and after standing, and had a low foam volume reduction rate, and were not easily rinsed with water.
3. Sticky feeling test
40 Persons were selected to conduct evaluation test of the post-wash greasy feel of the laundry detergent samples prepared in examples 1 to 4 and comparative examples 1 to 3. The test method is as follows:
(1) Preparing 2L of tap water and corresponding clothes to be washed for each laundry detergent sample;
(2) Adding a pump (4 mL) of laundry detergent sample into 2L of tap water, uniformly mixing, soaking the clothes until the clothes are completely wet, and washing normally until the clothes are clean;
(3) After washing, the clothes are fished out and wrung out; rinsing with 3L clear water for 2 times, and washing hands for 5 times each time;
(4) After the rinsing, the post-washing evaluation was performed, and the number of votes felt by 40 persons after washing on the samples of examples 1 to 4 and comparative examples 1 to 3 was counted, and only 1 vote was cast on the same sample by each person.
TABLE 5 foam test results for concentrated laundry detergents of examples 1-4, comparative examples 1-3
As can be seen from the sticky feel test data in Table 5, examples 1-4 are samples compounded with sodium secondary alkyl sulfonate and alpha-hexyl-omega-hydroxypoly (oxy-1, 2-ethanediyl), and more than half of the people consider that the hands are dry after washing, and have no greasy feel at all; in comparative examples 1 to 3, a few people consider that the washing liquid has no greasy feeling, and more than half people consider that the washing liquid has a certain greasy feeling; therefore, the invention adopts the specific surfactant for compounding, and can greatly improve the problem of the greasy feeling of hands after the concentrated laundry detergent is washed.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (10)
1. The stable weak acid concentrated laundry detergent is characterized by comprising the following components in percentage by mass:
2. the stable weakly acidic concentrated laundry detergent of claim 1, wherein the fatty acid methyl ester ethoxylate has the following structural formula:
R-COO-[-CH2-CH2-O-]x-CH3；
wherein X is selected from integers of 3-12, and R is selected from carbon chains of C12-C14.
3. The stable weakly acidic concentrated laundry detergent according to claim 1, wherein the other surfactant is selected from at least two of anionic surfactant, nonionic surfactant and zwitterionic surfactant.
4. A stable weakly acidic concentrated laundry detergent according to claim 3, wherein the anionic surfactant is selected from one or more of alkyl sulphate, fatty alcohol polyoxyethylene carboxylate, fatty acid methyl ester sulphonate, fatty acid salt.
5. A stable weakly acidic concentrated laundry detergent according to claim 3, wherein the nonionic surfactant is selected from one or more of fatty alcohol polyoxyethylene ether, soapnut saponin.
6. A stable weakly acidic concentrated laundry detergent according to claim 3, wherein the zwitterionic surfactant is selected from one or more of amino acid type surfactants, betaine type surfactants.
7. The stable weakly acidic concentrated laundry detergent according to claim 1, wherein the adjunct is selected from one or more of preservatives, anti-redeposition agents, enzyme preparations, solvents, photostable bleaching agents, neutralising agents, fragrances, pigments, salts, chelating agents and optical brighteners.
8. A process for the preparation of a stable weakly acidic concentrated laundry detergent as claimed in any one of claims 1 to 7, characterised in that it comprises the steps of:
S1, adding water and a solvent into a container, heating, adding secondary sodium alkyl sulfonate and alpha-hexyl-omega-hydroxy poly (oxy-1, 2-ethylene glycol), and stirring until the secondary sodium alkyl sulfonate and the alpha-hexyl-omega-hydroxy poly (oxy-1, 2-ethylene glycol) are completely dissolved;
s2, stopping heating, adding the rest surfactant, uniformly stirring, adding the rest water, and regulating the pH value after cooling;
and S3, adding other raw materials, and stirring until the raw materials are completely dissolved, thus obtaining the stable weak acidic concentrated laundry detergent.
9. The method for preparing a stable weakly acidic concentrated laundry detergent according to claim 8, wherein in step S1, the heating temperature is 50-70 ℃, and in step S2, the cooling temperature is 30-50 ℃.
10. The method for preparing a stable weakly acidic concentrated laundry detergent according to claim 8, wherein the pH in step S2 is 6-7.
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